﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;
using System.Web.Security;
using VolunteerWebsite.Models;

namespace VolunteerWebsite.Controllers
{
    public class AccountController : Controller
    {

        //
        // GET: /Account/LogOn

        public ActionResult LogOn()
        {
            return View();
        }

        //
        // POST: /Account/LogOn

        [HttpPost]
        public ActionResult LogOn(LogOnModel model, string returnUrl)
        {
            if (ModelState.IsValid)
            {
                if (Membership.ValidateUser(model.UserName, model.Password))
                {
                    //储存记住帐号的Cookie
                    FormsAuthentication.SetAuthCookie(model.UserName,model.RememberAccount);

                    //储存记住密码的Cookie
                    FormsAuthentication.SetAuthCookie(model.UserName, model.RememberPassword);


                    if (Url.IsLocalUrl(returnUrl) && returnUrl.Length > 1 && returnUrl.StartsWith("/")
                        && !returnUrl.StartsWith("//") && !returnUrl.StartsWith("/\\"))
                    {
                        return Redirect(returnUrl);
                    }
                    else
                    {
                        return RedirectToAction("Index", "Home");
                    }
                }
                else
                {
                    ModelState.AddModelError("", "The user name or password provided is incorrect.");
                }
            }

            // If we got this far, something failed, redisplay form
            return View(model);
        }

        //
        // GET: /Account/LogOff

        public ActionResult LogOff()
        {
            FormsAuthentication.SignOut();

            return RedirectToAction("Index", "Home");
        }

        //
        // GET: /Account/Register

        public ActionResult Register()
        {
            return View();
        }

        //
        // POST: /Account/Register

        [HttpPost]
        public ActionResult Register(RegisterModel model)
        {
            if (ModelState.IsValid)
            {
                // Attempt to register the user
                MembershipCreateStatus createStatus;
                Membership.CreateUser(model.UserName, model.Password, model.Email, null, null, true, null, out createStatus);

                if (createStatus == MembershipCreateStatus.Success)
                {
                    FormsAuthentication.SetAuthCookie(model.UserName, false /* createPersistentCookie */);
                    return RedirectToAction("Index", "Home");
                }
                else
                {
                    ModelState.AddModelError("", ErrorCodeToString(createStatus));
                }
            }

            // If we got this far, something failed, redisplay form
            return View(model);
        }

        //
        // GET: /Account/ChangePassword

        [Authorize]
        public ActionResult ChangePassword()
        {
            return View();
        }

        //
        // POST: /Account/ChangePassword

        [Authorize]
        [HttpPost]
        public ActionResult ChangePassword(ChangePasswordModel model)
        {
            if (ModelState.IsValid)
            {

                // ChangePassword will throw an exception rather
                // than return false in certain failure scenarios.
                bool changePasswordSucceeded;
                try
                {
                    MembershipUser currentUser = Membership.GetUser(User.Identity.Name, true /* userIsOnline */);
                    changePasswordSucceeded = currentUser.ChangePassword(model.OldPassword, model.NewPassword);
                }
                catch (Exception)
                {
                    changePasswordSucceeded = false;
                }

                if (changePasswordSucceeded)
                {
                    return RedirectToAction("ChangePasswordSuccess");
                }
                else
                {
                    ModelState.AddModelError("", "The current password is incorrect or the new password is invalid.");
                }
            }

            // If we got this far, something failed, redisplay form
            return View(model);
        }

        //
        // GET: /Account/PersonalInformation
        public ActionResult PersonalInformation()
        {
            return View();
        }


        //
        // GET: /Account/ChangePasswordSuccess

        public ActionResult ChangePasswordSuccess()
        {
            return View();
        }

        #region Status Codes
        private static string ErrorCodeToString(MembershipCreateStatus createStatus)
        {
            // See http://go.microsoft.com/fwlink/?LinkID=177550 for
            // a full list of status codes.
            switch (createStatus)
            {
                case MembershipCreateStatus.DuplicateUserName:
                    return "帐号已存在.请输入其他帐号.";/*User name already exists. Please enter a different user name.*/

                case MembershipCreateStatus.DuplicateEmail:
                    return "该邮箱已有对应帐号.请输入其他邮箱地址.";/*A user name for that e-mail address already exists. Please enter a different e-mail address.*/

                case MembershipCreateStatus.InvalidPassword:
                    return "密码错误.请重新输入密码.";/*The password provided is invalid. Please enter a valid password value.*/

                case MembershipCreateStatus.InvalidEmail:
                    return "请输入正确的邮箱地址.";/*The e-mail address provided is invalid. Please check the value and try again.*/

                case MembershipCreateStatus.InvalidAnswer:
                    return "验证答案错误.请重新输入验证答案.";/*The password retrieval answer provided is invalid. Please check the value and try again.*/

                case MembershipCreateStatus.InvalidQuestion:
                    return "验证问题错误.请重新输入验证问题.";/*The password retrieval question provided is invalid. Please check the value and try again.*/

                case MembershipCreateStatus.InvalidUserName:
                    return "不存在该帐号.请重新输入帐号.";/*The user name provided is invalid. Please check the value and try again.*/

                case MembershipCreateStatus.ProviderError:
                    return "认证错误.请核实你的登录状态.如果问题仍然存在,请联系你的系统管理员.";/*The authentication provider returned an error. Please verify your entry and try again. If the problem persists, please contact your system administrator.*/

                case MembershipCreateStatus.UserRejected:
                    return "用户需求取消.请核实你的登录状态.如果问题仍然存在,请联系你的系统管理员.";/*The user creation request has been canceled. Please verify your entry and try again. If the problem persists, please contact your system administrator.*/

                default:
                    return "未知错误.请核实你的登录状态.如果问题仍然存在，请联系你的系统管理员.";/*An unknown error occurred. Please verify your entry and try again. If the problem persists, please contact your system administrator.*/
            }
        }
        #endregion
    }
}
